Straight edge razors are practical and awesome.
1. Straight edge razors are less expensive than disposable razors. After the initial investment and with proper care, you should be able to pass your straight razors on to your children and them on to theirs.
2. Environmentally-friendly. Now that you have a razor that'll last generations, you're no longer throwing cheap disposable razors and their packaging away every month.
3. Smooth shave. If this is news to you, you've yet to try shaving with a good quality straight edge razor.
Get yourself a leather strop (I like this one), a brush (I like this), some shaving cream or oil, and one of my handmade straight razors and you can thank me later. Read more about how to maintain your straight razor here.